Commit 67a69dab authored by Anson Huang's avatar Anson Huang Committed by Rob Herring
Browse files

dt-bindings: mmc: Convert mxs mmc to json-schema 



Convert the MXS MMC binding to DT schema format using json-schema

Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1591234886-15351-4-git-send-email-Anson.Huang@nxp.com


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 4f35f196

Documentation/devicetree/bindings/mmc/mxs-mmc.txt

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* Freescale MXS MMC controller



The Freescale MXS Synchronous Serial Ports (SSP) can act as a MMC controller

to support MMC, SD, and SDIO types of memory cards.



This file documents differences between the core properties in mmc.txt

and the properties used by the mxsmmc driver.



Required properties:

- compatible: Should be "fsl,<chip>-mmc".  The supported chips include

  imx23 and imx28.

- interrupts: Should contain ERROR interrupt number

- dmas: DMA specifier, consisting of a phandle to DMA controller node

  and SSP DMA channel ID.

  Refer to dma.txt and fsl-mxs-dma.txt for details.

- dma-names: Must be "rx-tx".



Examples:



ssp0: ssp@80010000 {

	compatible = "fsl,imx28-mmc";

	reg = <0x80010000 2000>;

	interrupts = <96>;

	dmas = <&dma_apbh 0>;

	dma-names = "rx-tx";

	bus-width = <8>;

};

Documentation/devicetree/bindings/mmc/mxs-mmc.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/mmc/mxs-mmc.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Freescale MXS MMC controller



maintainers:

  - Shawn Guo <shawn.guo@linaro.org>



description: |

  The Freescale MXS Synchronous Serial Ports (SSP) can act as a MMC controller

  to support MMC, SD, and SDIO types of memory cards.



  This file documents differences between the core properties in mmc.txt

  and the properties used by the mxsmmc driver.



allOf:

  - $ref: "mmc-controller.yaml"



properties:

  compatible:

    enum:

      - fsl,imx23-mmc

      - fsl,imx28-mmc



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  dmas:

    maxItems: 1



  dma-names:

    const: rx-tx



required:

  - compatible

  - reg

  - interrupts

  - dmas

  - dma-names



unevaluatedProperties: false



examples:

  - |

    mmc@80010000 {

        compatible = "fsl,imx28-mmc";

        reg = <0x80010000 2000>;

        interrupts = <96>;

        dmas = <&dma_apbh 0>;

        dma-names = "rx-tx";

        bus-width = <8>;

    };